Exhaust Fan, Assembled Assembled, Blade Diameter 14 in, Blade Material Polypropylene, Drive Type Direct Drive, Exhaust Airflow @ 0.000 in SP 2,150 cfm, For -Out Height 15 1/2 in, For -Out Width 15 1/2 in, For Minimum Wall Thickness 3/4 in, Frame Material Fiberglass, Guard Finish Powder Coated, Guard Material Steel, Guard Type Intake, Housing Material Aluminum, Includes Intake Guard, Includes Dehumidistat No, Maximum Airflow 2,160 cfm